Speed governor for tractors



. Feb. 20,1923: 1 1,446,051.

E. KRAUSE.

' SPEED GOVERNOR FOR TRACTORS.

FILED APR. '2, 1919. SHEETSSHEET 1.

I inventor f. ffnwuaz:

2 S HEETS-.SHEET 2.

Feb. 20, 1923. I v

' E. KRAUSE. 7

SPEED GOVERNOR FOR TRACTORS.

FILED APR.-'2| i919.

I 1. :ObhenIand-incident 3mg: M11. 1 01 l ifatibn mmApri 2,3

' :1n' fihei' Fdrd=-fiype "ofgtmctoi all" 561?. thew v mechanism 101?" the engine}; and-e associated parts is,. with the ezgeeptiong fthe fexhfhe V faln: belt andf dl ivi I pilll'eyf .f0'fr the; belt, en: closed; 7 and the invention; the-efOmgMg e's "*ae further object te; pfovideegoven may be" operated: frem zh'theg fan abeltfl-sof "as 'tQ- thereby eliminalte;any: necessity "for 'i turalzchmige theti'actozffvfifl' a Thevinvention has- 3513a -,sti11}furthe1 obj'eet to pro'vide a gover n'er which in'ay ll be ed.- justably set,3601:.dfiferenc-tracfior Speeds. i J

l And the. invention has; as,a still fuiiithen. objeiatc-to provide; al geverfho-rgwhich may be easily anc yquickly; mounted iiI'i, position; mid Which,;;in;. practical use, will 1 operate fwith enti;-rejeflicienoy.=

a1; -;-hereinaften. thB L-QdI'SLWi IIg-S'E I t L 7 Figure} I :is a -fragm'enta,1 y f si de' lev abion showing my improved geverno r in; active position upoma Lract n0f;;the;E0rdf1iype, x 1 Figure 2, is {a fragme ntary plan. view-mere particularly -,-il1llS tIffLtiIig ;th6: dis poe itio'n' 10f the governor with respect vEtO i the tractor: inelanjd assdeia tedparts; e 1;

' "3' i-is? Ya fragmentary pepspecti've.

@ .1g fi e; ma er- '1 ar'w 'd vie M ng eyer e i i 1 ,091

v rgaged wi i" .r s :a; d l wi 'shQW- ng' t,

carried by {she throttle ied? an .sprin 'ass pettle e H nder lthat'zthe cqnsbnuetipmfi rfxtilon yg n e s d:

v detail in connection with ore, 0f"Whi'Ch t-11Q- followh ,l -iswindicafced w'at 10.

proved from thev bottomlp u'iiocthe water jacket'o-f thet'engin Supported; in '[the trtinedl even-1 a ;0b upp Lively which are 'eonlieetedl by a ks g Br shewn in Y-Ei gLiIZQ QL The h a g l Q he ing n ee tside; of the engine ami reeeiv governofiwill; ne

traetorish'own.

I; fogjsa ble fer 0119111 13 serve-t0; rigidlyfgsegure the fr Q; with e bqw d pOitiont ta a oun h i tur ipe =1:

lit; (1

i g$13 1 vi e-i91 eoacting with the fan drive belt 2].. Fixed upon the shaft is a collar 38 coacting with the rearmost bearing of the supporting frame for holding the shaft against forward longitudinal movement and slidable longi tudinally upon the rear end portion of the shaft is a yoke 39. This yoke is provided with an annular groove 40 and pivoted upon the yoke at opposite sides thereof are links 41 coupled with. weighted arms as pivotally mounted upon the collar 38 at opposite sides thereof. Threaded upon the rear end portion of the governor shaft in advance of the yoke 39 is a nut A23 and hearing between this nut and the yoke is a helical spring at surrounding the shaft.

Fixed upon a. convenient support 26 in rear of the engine are spaced looped bearing straps &5 and journaled through these straps is the horizontal portion of a throttle actuating lever 4L6. At one end of this horizontal portion of the lever is a depending crank 4:7 from the lower end of which projects a laterally and outwardly directed arm 48 and mounted upon this arm is a sleeve roller 4C9 engaging in the groove 40 of the governor yoke 39. At the opposite end of the horizontal portion of the lever a6 is a rearwardly directed crank 50 upon the outer end of which is rotatably mounted a grooved roller 51. In the normal position of the governor yoke 39 upon the governor shaft, this crank 50 is inclined rearwardly upward towards its free end. Adjustably rotatable upon the throttle rod 25 is a sleeve 52 held in adjusmd position upon the rod by a set bolt 53. Projecting inwardly from the sleeve is an arm 54. and bearing over this arm is the roller 51 of the crank 50 of the throttle actuating lever 46. Connected at one end with the set bolt 53 is a spring 55, the opposite end of which is, as shown in Figure 4, se cured to any conveniently located part of the tractor. This spring is adapted to rotate the throttle rod 25 and normally tends to open the throttle valve of the carbureter 23. As will now be seen, the spring 4A upon the shaft 35 of the governor will normally hold the yoke 39 at the limit of its out ward movement upon the shaft. Consequently, the crank 47 of the lever 46 will be swung rearwardly to its extreme position so that the crank 50 will be held elevated, allowing the spring 5a to maintain the throttle valve of the carbureter open. However, when the engine is started and the fan belt 21 1s caused to travel accordingly, the governor shaft 35 will, through the frictional engagement of the pulley 37 with said belt, be caused to rotate. The links ll of the governor will, therefore, as will be clear, he swung outwardly so that the yoke 39 will be shifted forwardly upon the governor shaft against the tension of the spring 44. Forward movement of the yoke 39 will, turn,

swing the crank 4.7 forward to depress the pulley 51 against the arm 54: and accordingly rotate the throttle rod '25 for closing the throttle valve of the carbureter. Therefore, as will be seen, the maximum speed of the tractor will be governed by the tension of the spring 4A, the extent of forward movement of the yoke 39 compressing this spring determining the extent of the closing movement of the throttle valve of the carburetor. Consequently, by positioning the nut 43 longitudinally upon the governor shaft to accordingly vary the tension of the spring 4A, the governor may be readily set for different tractor speeds. Furthermore, since the governor is driven directly from the fan belt which, in turn, is driven by the engine crank shaft, the'governor will tend to maintain the speed of the tract-oi constant at any given speed to which the governor is adjusted. I accordingly provide a highly effective type of governor and, as will now be appreciated, a governor which may be readily connected to a tractor of the Ford type without the necessity for structural change therein.

Having thus described the invention, what is claimed as new is:

1. The combination with an engine, a radiator, and a return pipe leading from the radiator to the water jacket of the engine, of a frame consisting of a bottom bar secured upon the engine, a top bar and end bars connecting the top and bottom bars, one of said end bars having a bowed portion accommodating the return pipe, a governor shaft journaled in said frame and arranged parallel to the side of the engine, means whereby said shaft is driven from the engine, a fuel control, a governor on the governor shaft, and operative connections in rear of the engine between the governor and the fuel control whereby to decrease the flow of fuel as the speed of the engine increases.

2. The combination with an internal com bustion engine, and a carburetor therefor, of a governor shaft supported longitudin-ally at one side of the engine, means whereby said governor shaft may be driven from the engine, a governor carried by the rear end of said governor shaft and including a slidable yoke, a rock shaft mounted in rear of the engine transversely thereto, an arm at one end of said rock shaft engaging said slidable yoke, a crank at the opposite end of said rock shaft, a. carburetor-controlling rod, an arm extending from; said rod and engaging the last-mentioned crank, and a spring connected to said rod and acting thereon to hold the carburetor normally open and the said arm in engagement with the said crank.

3. The combination with an internal combustion engine, and a carburetor therefor, of a governor shaft p ed lon 

